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Finding the Fourth Proportional to 260,913.72, 360,062.28 and 147,758.52

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Solution

The fourth proportional to 260,913.72, 360,062.28 and 147,758.52 is: 203,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,913.72 : 360,062.28 = 147,758.52 : x
  2. Step 2: Convert to fraction form
    260,913.72/360,062.28 = 147,758.52/x
  3. Step 3: Cross multiply
    260,913.72x = 360,062.28 × 147,758.52
  4. Step 4: Simplify right side
    260,913.72x = 53,202,269,600.63
  5. Step 5: Solve for x
    x = 53,202,269,600.63/260,913.72
  6. Step 6: Final answer
    x = 203,907.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.